{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
\hline\hline
                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}\\
                    &\multicolumn{1}{c}{30 second}&\multicolumn{1}{c}{1 min}&\multicolumn{1}{c}{3 min}&\multicolumn{1}{c}{5 min}&\multicolumn{1}{c}{10 min}&\multicolumn{1}{c}{15 min}\\
\hline
Time Control Indicator&      -0.304\sym{***}&      -0.440\sym{***}&      -2.104\sym{***}&      -1.721\sym{***}&      -3.534\sym{***}&      -2.370\sym{***}\\
                    &   (0.00788)         &    (0.0103)         &    (0.0132)         &    (0.0319)         &    (0.0403)         &     (0.134)         \\
\hline
Observations        &       33578         &       43518         &      225144         &      122336         &      229578         &       49668         \\
\hline\hline
\end{tabular}
}
